module sub_per(s_p_out,s_p_in); 
/*连接substitution和permutation*/

input  wire[63:0] s_p_in;              
output wire[63:0] s_p_out;

wire [63:0] s; 


substitution sub_per_substitution(.sub_out(s),.sub_in(s_p_in)); 
permutation  sub_per_permutation (.P_out(s_p_out),.P_in(s)); 

endmodule